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Topic: 041 / 041x heads 1969 350 (Read 4706 times)

trying to find a correct set of heads for a 1969 ss350 auto. build date 02-19-69 , 388 tonawanda block hb . i was told i needed 041 heads. i find available 041 and 041x . what is the difference between these two and which are correct.

A friend who has spent his entire career at the Saginaw foundry says the "X" is meaningless - just a foundry marker - on all small-block heads except the 461's, where the 461X had a 15cc larger intake port.